Results 21 to 30 of about 17,166 (214)

GPU Accelerated Processing Method for Feature Point Extraction and Matching in Satellite SAR Images

Applied Sciences
This paper addresses the challenge of extracting feature points and image matching in Synthetic Aperture Radar (SAR) satellite images, particularly focusing on large-scale embedding.
Lei Dong, Niangang Jiao, Tingtao Zhang, Fangjian Liu, Hongjian You   +4 more
doaj   +1 more source

See-Earth: SAR Constellation with Dense Time-SEries for Multi-dimensional Environmental Monitoring of the Earth

Leida xuebao, 2021
The limitations of satellite versatility, application dimensions, and wide-area observation efficiency are major issues impeding the development of Chinese spaceborne Synthetic Aperture Radar (SAR).
Yingjie WANG, Robert WANG, Weidong YU, Qingchao ZHAO, Kaiyu LIU, Dacheng LIU, Yunkai DENG, Naiming OU, Xiaoxue JIA, Heng ZHANG, Pengfei ZHAO, Wei WANG, Wei YU, Daqing GE, Xinming TANG, Tao LI   +15 more
doaj   +1 more source

Spaceborne Bi- and Multistatic SAR: Potential and Challenges

, 2006
Bi- and multistatic synthetic aperture radar (SAR) operates with distinct transmit and receive antennas that are mounted on separate platforms. Such a spatial separation has several operational advantages, which will increase the capability, reliability ...
Moreira, Alberto, Krieger, Gerhard
core   +1 more source

GPU Acceleration for SAR Satellite Image Ortho-Rectification

Remote Sensing
Synthetic Aperture Radar (SAR) satellite image ortho-rectification requires pixel-level calculations, which are time-consuming. Moreover, for SAR images with large overlapping areas, the processing time for ortho-rectification increases linearly ...
Lei Dong, Tingtao Zhang, Fangjian Liu, Rui Liu, Hongjian You   +4 more
doaj   +1 more source

Geometric Calibration and Accuracy Verification of the GF-3 Satellite

Sensors, 2017
The GF-3 satellite is the first multi-polarization synthetic aperture radar (SAR) imaging satellite in China, which operates in the C band with a resolution of 1 m.
Ruishan Zhao, Guo Zhang, Mingjun Deng, Kai Xu, Fengcheng Guo   +4 more
doaj   +1 more source

Sequential Ensembles Tolerant to Synthetic Aperture Radar (SAR) Soil Moisture Retrieval Errors

Geosciences, 2016
Due to complicated and undefined systematic errors in satellite observation, data assimilation integrating model states with satellite observations is more complicated than field measurements-based data assimilation at a local scale.
Ju Hyoung Lee
doaj   +1 more source

Quick Quality Assessment and Radiometric Calibration of C-SAR/01 Satellite Using Flexible Automatic Corner Reflector

Remote Sensing, 2022
C-SAR/01, the successor of China’s Gaofen-3 Satellite, which launched on 23 November 2021, is the first synthetic aperture radar (SAR) satellite to be launched in China’s civil space infrastructure plan and has served as an invaluable data resource ...
Qiqi Huang, Fengli Zhang, Lu Li, Xiaochen Liu, Yanan Jiao, Xinzhe Yuan, Huirong Li   +6 more
doaj   +1 more source

Gas pipeline monitoring in Europe by satellite SAR [PDF]

SPIE Proceedings, 2003
At present, gas pipeline networks in Europe are routinely monitored by vehicle and air patrols to protect them against damage by soil movement and third part interference. Because of the expenses, pipeline operators are investigating the possibilities to replace these traditional monitoring methods by remote sensing from space.
openaire   +2 more sources

VTWSAR: A Fast Calculation Method for Visible Time Window of SAR Satellite to Regional Target

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The calculation of the visible time window (VTW) of synthetic aperture radar (SAR) satellite to regional target plays an important role in SAR satellite mission planning.
Xin Shi, Wenjie Xing, Huitao Liu, Yanxue Wang, Mengdao Xing   +4 more
doaj   +1 more source

A Review of Spaceborne SAR Algorithm for Image Formation

Leida xuebao, 2013
This paper firstly reviews the history and trends in development of spaceborne Synthetic Aperture Radar (SAR) satellite technology in American and European countries.
Li Chun-sheng, Yang Wei, Wang Peng-bo
doaj   +1 more source